F05D 2240/53
Hydrodynamic or hydrostatic bearings
F05D2240/53 (Hydrodynamic or hydrostatic bearings) appears on 181 US grants and 189 published applications in this corpus.
Search patents in F05D- Granted patents
- 181
- Published applications
- 189
- Assignees
- 79
- Inventors
- 439
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 1 | 3 |
| 2006 | 0 | 3 |
| 2007 | 3 | 6 |
| 2008 | 1 | 4 |
| 2009 | 2 | 6 |
| 2010 | 7 | 5 |
| 2011 | 3 | 3 |
| 2012 | 8 | 4 |
| 2013 | 4 | 6 |
| 2014 | 4 | 9 |
| 2015 | 2 | 8 |
| 2016 | 5 | 8 |
| 2017 | 11 | 20 |
| 2018 | 15 | 19 |
| 2019 | 18 | 13 |
| 2020 | 20 | 18 |
| 2021 | 19 | 13 |
| 2022 | 14 | 10 |
| 2023 | 18 | 10 |
| 2024 | 8 | 10 |
| 2025 | 6 | 4 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Additively manufactured gas turbine engine and ventilator15 Sep 2026US 12,735,995 B2Technion Research & Development Foundation Limited
- Cooling of a compressor shaft gas bearing1 Sep 2026US 12,723,592 B2Trane International Inc.
- Magnetic-foil bearing with cooling system2 Jun 2026US 12,644,490 B2Rtx Corporation
- Elongated journal bearing for high gear ratio epicyclic fan drive gear system30 Sep 2025US 12,429,000 B2Rtx Corporation
- Aircraft engine with squeeze film damper29 Jul 2025US 12,372,028 B2Pratt & Whitney Canada Corp.
- Turbomachine27 Aug 2026US 2026/0251078 A1Kawasaki Jukogyo Kabushiki Kaisha
- Rotating carrier oil manifold11 Jun 2026US 2026/0160208 A1Rtx Corporation
- Elongated journal bearing for high gear ratio epicyclic fan drive gear system11 Dec 2025US 2025/0376952 A1Rtx Corporation
- Hydrodynamic foil bearing shaft13 Nov 2025US 2025/0347233 A1Hamilton Sundstrand Corporation
- Rocket Engine7 Aug 2025US 2025/0250952 A1Astron Systems, Inc.
Most cited
By later US patents
- Counter-rotating turbine engine and method of assembling same62US 7,195,446 B2General Electric Company · 2007
- RAM fan system for an aircraft environmental control system54US 7,757,502 B2Hamilton Sundstrand Corporation · 2010
- Rotor and bearing system for electrically assisted turbocharger51US 6,449,950 B1Honeywell International Inc. · 2002
- Anisotropic bearing supports for turbochargers43US 8,118,570 B2Honeywell International Inc. · 2012
- Gas turbine power plant36US 7,730,713 B2Hitachi, Ltd. · 2010